AZ-204 Quiz

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Storage Redundancy (1 / 16):

Your company operates a high-traffic application hosted on Azure. Their service level agreement with their clients requires a high level of data availability and redundancy. Their data is not restricted by any data governance law, and data loss is something that cannot be afforded.

What type of Azure storage redundancy should your company consider to meet their high data availability and redundancy requirements?
How does the chosen storage redundancy option ensure high data availability and protect against data loss?
What potential issues might your company encounter if they opted for Locally Redundant Storage instead of the recommended option?

Answer:

Your company should consider using Zone-Redundant Storage (ZRS). ZRS would be a great fit because it synchronously replicates data across different availability zones within the same region, providing high availability and durability.
ZRS ensures high data availability by maintaining three copies of the data across different availability zones in the same region. In the event of a zone failure, ZRS can still serve data from the remaining zones, minimizing the risk of data loss.
If your company opted for Locally Redundant Storage (LRS), they would have a higher risk of data loss and downtime. LRS replicates data within a single data center, so if that data center were to go offline due to a catastrophic event, all data could be lost.

Exam revision: April 11, 2025